@InProceedings{lee-hu:2015:EMNLP,
  author    = {Lee, Sungjin  and  Hu, Yifan},
  title     = {Joint Embedding of Query and Ad by Leveraging Implicit Feedback},
  booktitle = {Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing},
  month     = {September},
  year      = {2015},
  address   = {Lisbon, Portugal},
  publisher = {Association for Computational Linguistics},
  pages     = {482--491},
  url       = {http://aclweb.org/anthology/D15-1054}
}